The RE -stage inverted electric gourd belongs to the second generation of the stage gourd. It upgrades on the basis of the original IP54 of the RZ type, and the protection level can reach IP55. At the same time, RE's second -generation stage electric gourd is added to the contact limit function, which can realize automatic power outage until the specified will prevent the top of the top. The second -generation speed has also been improved, from the original 4m/min to 6m/min. In terms of chain specifications, from the traditional 6mm, 8mm, 10mm, strengthen the 6.3mm, 7.1mm, and 10mm used on imported electric gourds.